ORA-15018, ORA-15072 on node 2 when running root.sh

U have to give the path of asm disks manually when installing 11g grid Infrastructure

click Disk discovery path and then write

/dev/oracleasm/disks

automatically asm disks will be showned on list.And dont forget to check owner of disks they should belong to oracle:oinstall..

then edit /etc/sysconfig/oracleasm and add dm,sd parameters otherwise u can have a trouble with disks after restarting server.(if  you are using multipath.)

ORACLEASM_SCANORDER="dm"
ORACLEASM_SCANEXCLUDE="sd"

last thing, dont forget to restart  oracleasm

/etc/init.d/oracleasm restart.

after these steps are done simply run rootcrs.pl -verbose -deconfig -force on first node , if u have more than two nodes then u have to add -verbose. good luck.

applying patch 9413827 before upgrading crs to 11.2.0.3.0

patch id 9413827
with root
/u01/app/11.2.0/grid/crs/install/rootcrs.pl -unlock
su - oracle
9413827/custom/scripts/prepatch.sh -dbhome $ORACLE_HOME
First applying patch for grid;
/u01/app/11.2.0/grid/OPatch/opatch napply -local -oh $CRS_HOME -id 9413827
then for database;
/u01/app/oracle/product/11.2.0/db_1/OPatch/opatch napply custom/server/ -local -oh $ORACLE_HOME -id 9413827

again with root
chmod +w /u01/app/11.2.0/grid/log/rac1/agent/
chmod +w /u01/app/11.2.0/grid/log/rac1/agent/crsd/

su - oracle

custom/server/9413827/custom/scripts/postpatch.sh -dbhome $ORACLE_HOME


su - root

/u01/app/11.2.0/grid/crs/install/rootcrs.pl -patch

same steps for node 2 too..